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Old 11-06-2011, 12:11 PM
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Dual A/C

in December of 2009 I managed to find a vintage air setup for my 1940 ford.

woodie air

unfortunately the under dash area of a 40 wagon is somewhat limiting.. especially when your buying someone elses used parts!



to compensate I am thinking about installing a second evaporator for rear seat passengers..



I have two concerns..

1. what does the A/C line routing look like (ie do I put the second evaporator in series with the first, or parallel?)

2. how do I determine what size compressor I need?
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Old 11-06-2011, 12:30 PM
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The second evap should be parallel with the first.
Your compressor (if healthy) will be fine , it will keep up.
Most systems use an orifice tube for the front and an expansion valve in the rear.It is a little easier to fill/diagnose a system with that combo as the orifice is a constant and the expansion valve is a regulatory type device.
If the front has an expansion you could run the orifice in the rear, but the rear may cool better/ faster untill the system gets stabilized after a few minutes of run time.
You can run expansion valves on both ends if you like ,but it will be a little trickier to arrive at the correct pressures / charge amount as it would take a little more time for the temp/ pressures of the system to stabilize.
Super Nifty Woody BTW.

Last edited by latech; 11-06-2011 at 12:37 PM.
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Old 05-01-2012, 07:59 PM
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thanks.. I started the install and appreciate the info!
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Old 05-05-2012, 09:05 AM
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Nice Woody!

Jon
http://1972vega.wordpress.com/
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Old 05-06-2012, 12:47 PM
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I bought a 34 wagon and we call it a woody
Surf city here we come...
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